84=7(6+2x)

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Solution for 84=7(6+2x) equation: 



84=7(6+2x)

We move all terms to the left:

84-(7(6+2x))=0

We add all the numbers together, and all the variables

-(7(2x+6))+84=0



We calculate terms in parentheses: -(7(2x+6)), so:

7(2x+6)

We multiply parentheses

14x+42

Back to the equation:

-(14x+42)



We get rid of parentheses

-14x-42+84=0

We add all the numbers together, and all the variables

-14x+42=0

We move all terms containing x to the left, all other terms to the right

-14x=-42

x=-42/-14

x=+3

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